| # | Country | Total Patents | |
|---|---|---|---|
| #1 | WIPO (World Intellectual Property Organization) | 5 | |
| #2 | Republic of Korea | 4 | |
| #3 | China | 3 | |
| #4 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Foundations and excavations | |
| #2 | General building constructions | |
| #3 | Scaffolding |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kamata Yoshio | 10 |
| #2 | Yama Kazumasa | 5 |
| #3 | Yoshio Kamata | 3 |
| #4 | Kazumasa Yama | 1 |
| #5 | Pareek Sanjay | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CN102575448A | Backfill structure and backfill method | |
| WO2012014298A1 | Concrete structure construction method and concrete structure molding panel | |
| KR20130073866A | Building unit for concrete structure and method of executing construction using said building unit | |
| US2013008125A1 | Construction method for new underground structure |